1、Unit 13 Were trying to save the earth!,Section A 23a-3b,The earth is badly polluted.What should we do to save the earth?,Lets take action (采取行动),Turn off the lights when you leave a room.,Recycle books and paper.,Take buses instead of driving cars.,Dont use paper napkins.,You can help reduce polluti
2、on by putting that soda can in a different bin.,Leave your car at home.Take a bus or ride your bike to work.,Turn off the lights when you leave a room.,There are some animals are endangered. We should do something to protect the animals and the environment!,Save the earth!Save the animals!,The zoos
3、provide homes for many endangered animals.,1. What do you know about shark(鲨鱼)?2. Do you think sharks can be endangered? Why?,3. What do you think might cause a fall in the number of sharks?,southern China,70 million,over 90 percent,WildAid and the WWF,3a,Read the passage about sharks and complete t
4、he fact sheet below.,Retell the passage according to the words below.,3b,Read the passage again and fill in the blanks with the words in the box.,Many people do not realize they are killing a whole shark _ they enjoy a bowl of shark fin soup.2. Sharks are at the top of the food chain, _ if their num
5、bers drop, the oceans ecosystem will be in danger.,when,so,3. Many think that sharks are too strong to be endangered, _ they are wrong.4. _ there are no scientific studies to support this, a lot of people believe that shark fins are good for health.5. Sharks may disappear one day _ we do not do something to stop the sale of shark fins.,but,Although,if,adj. 科学上的，科学的,Homework,Write 5 measures to protect the environment.,U盘、电脑坏了？教学资料不见了？以前的资料没保存？每一届重复劳动？找不到精品课件、试题、教案反思？各大文库价格昂贵？来【163文库】吧，你可以：上传分享资料赚取零用钱；创建教学空间，分类收藏存储资料；方便下届使用；百万教学资源供你下载；【平台地址：】,
